/*
 ************************************************************************************
 * $Id: cookie.js 523 2008-02-01 01:50:06Z lavnrose $:
 ************************************************************************************
 * $Rev: 523 $:
 * $Version: 0.0 $:
 * $Author: lavnrose $:
 ************************************************************************************
 * $Date: 2008-02-01 10:50:06 +0900 (금, 01  2월 2008) $:
 * $LastChangedDate: 2008-02-01 10:50:06 +0900 (금, 01  2월 2008) $
 ************************************************************************************
 * Description: 
 * 
 */


function getCookie(c_name)
{
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf(c_name + "=");
		if (c_start!=-1)
		{
			c_start=c_start + c_name.length+1;
			c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1) c_end=document.cookie.length;
			return unescape(document.cookie.substring(c_start,c_end));
		} 
	}
	return "";
}

function checkCookie()
{
	username=getCookie('username');
	if (username!=null && username!="")
	{
		alert('Welcome again '+username+'!');
	} else  {
		username=prompt('Please enter your name:',"");
		if (username!=null && username!="")
		{
			setCookie('username',username,365);
		} 
	}
}